That's mostly an issue for those using VPN services. I should have made that clear.
Otherwise, it's mostly about how mistyped URLs get handled. Some DNS servers point mistyped URLs to neutral "did you mean?" pages. But others redirect to sites that pay for the service. Even worse, there's the possibility of outright MitM attacks.
And then there's censorship. Hit https://thepiratebay.se/ and see what you get. And that's just a torrent search site. To reach some sites, it takes some work to find a DNS server that will give you the IP address.
TPB still works for me. Can you provide an example DNS for a site that's difficult to find a DNS server that will give you the IP address? Barring that, could you explain the type of content that is censored this way? I currently use Google's DNS service. If they censor known malware URLs I'd be happy with that. I'm not sure if there's other types of sites I'd like them to filter.
Some DNS servers will show you a page about copyright infringement instead of TPB. Years ago, some German DNS servers were null-routing Nazi stuff. The FBI sometimes takes down sites through DNS spoofing aka cache poisoning. But normally, they go after root nameservers. In 2014, the Turkish government banned Twitter and YouTube through DNS cache poisoning: http://googleonlinesecurity.blogspot.com/2014/03/googles-pub...
Otherwise, it's mostly about how mistyped URLs get handled. Some DNS servers point mistyped URLs to neutral "did you mean?" pages. But others redirect to sites that pay for the service. Even worse, there's the possibility of outright MitM attacks.
And then there's censorship. Hit https://thepiratebay.se/ and see what you get. And that's just a torrent search site. To reach some sites, it takes some work to find a DNS server that will give you the IP address.